1. *Department of Obstetrics and Gynaecology, All India Institute of Medical Sciences, Bibinagar, Hyderabad, India
2. †Fernandez Foundation, Hyderabad, India
3. ‡Department of Neonatology, Kasturba Medical College, Manipal Academy of Higher Education, Manipal, Karnataka, India
4. §Department of Anatomy, All India Institute of Medical Sciences, Bibinagar, Hyderabad, India
5. ¶Department of Obstetrics and Gynaecology, All India Institute of Medical Sciences, Bilaspur, Himachal Pradesh, India
6. ‖Department of Anaesthesiology and Critical Care, All India Institute of Medical Sciences, Rishikesh, Uttarakhand, India